Correct Answer - Option 4 : 3 ∶ 5
Concept-
The reinforced concrete wall is designed as a compression member. The reinforced concrete wall is used in a case where the beam is not provided and load from the slab is heavy or when the masonry wall thickness is restricted.
As per clause 32.5 of IS 456:2000
- The minimum ratio of vertical reinforcement to the gross concrete area shall be
-
0.0012 for deformed bars not larger than 16 mm in diameter.
- 0.0015 for another type of bar.
The minimum ratio of horizontal reinforcement to the gross concrete area shall be
-
0.0020 for deformed bars not larger than 16 mm in diameter.
- 0.0025 for other types of bars.
The ratio of minimum vertical reinforcement to minimum horizontal reinforcement = \(\frac{{0.0012}}{{0.0020}} = \frac{3}{5}\)